ARM/KarmicReleaseNotes

KarmicReleaseNotes

Revision 6 as of 2009-10-28 11:59:12

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These release notes document known issues with Ubuntu 9.10 ARM platforms.

Offline installs might prevent timezone selection if the time is wrong: When booting a board with an incorrect time, the Linux kernel will clamp the time to the epoch but using this time still exposes issues such as preventing proper timwzone selection. We recommend setting the time from the live session before starting the installer. This can be achieved by right-clicking on the date/time applet in the top panel, selecting Preferences, then Time Settings, then chose a date/time and click Set System Time. See 461812.

DVI output does not work / is unstable: Display output on Babbage 2.x boards is underpowered and relatively unstable. The board might not be able to display any image with some DVI screens. This issue is particularly visible on Babbage 2.0 boards. Freescale recommends various hardware modifications to workaround the issue. This hardware issue is not tracked in Launchpad.
SATA port hangs on GNOME startup: The SATA connector on Babbage 2.x boards will disconnect under some circumstances, in particular when starting a GNOME session as it initializes various subsystems in parallel such as display, sound etc., while doing a lot of I/O. We recommend installing to USB or SD devices and not to a device attached to the SATA port. See 431963.
Resuming from suspend isn't possible: while gnome-power-manager exposes a suspend function, it is not possible to resume Babbage 2.x boards. See 456659.
Hibernate not supported: the hibernate functionality is not enabled in i.MX51 kernels. See 458537.
RTC clock not preserved on Babbage 2.0 boards: Babbage 2.0 boards can't preserve the time across power cycles. We recommend starting the board with network plugged in to allow the system to set the time via NTP or to use Babbage 2.5 boards. This hardware issue is not tracked in Launchpad.

System hangs after some seconds: Dove boards will hang when the CPU goes idle for the first time if you use the latest kernel with stock bootroms. We highly recommend updating your bootrom before installation, this is covered in the installation instructions for Dove boards. See 450940.